started work on appointments
rudimentary appointment handling

so far it's as easy as I thought
miscellaneous improvements

* fixed timezone handling for new appt dt
* the <hr/> between future and past journal entries returns!
* this required adding a few imports to hello.py
added the capability to edit treatment for an appointment
changed the way appt_tx_set() works
added one day graphical schedule view woah!
links!
tweaking schedule view
added notes and some links to appointment.html
now appointment handling is a big hairy mess

tomorrow is cleanup day!
some tweaks